<template>
  <div id="project">
    <h3>项目目录</h3>
    <el-tree
      :data="data"
      :props="defaultProps"
      @node-click="handleNodeClick"
    ></el-tree>

  </div>
</template>

<script>
// console.log("leftside");

export default {
  // el:"#leftside",
  name: "Project",
  data() {
    return {
      data: [
        {
          label: "一级 1",
          value:"deeplearning",
          name:"深度学习",
          children: [
            {
              label: "二级 1-1",
              children: [
                {
                  label: "三级 1-1-1",
                },
              ],
            },
          ],
        },
        {
          label: "一级 2",
          value:"frontlearning",
          name:"前端学习",
          children: [
            {
              label: "二级 2-1",
              children: [
                {
                  label: "三级 2-1-1",
                },
              ],
            },
            {
              label: "二级 2-2",
              children: [
                {
                  label: "三级 2-2-1",
                },
              ],
            },
          ],
        },
        {
          label: "一级 3",
          value:"backlearning",
          name:"后端学习",
          children: [
            {
              label: "二级 3-1",
              children: [
                {
                  label: "三级 3-1-1",
                },
              ],
            },
            {
              label: "二级 3-2",
              children: [
                {
                  label: "三级 3-2-1",
                },
              ],
            },
          ],
        },
      ],
      defaultProps: {
        children: "children",
        label: "label",
      },
    };
  },
  props: {
    HeaderIndex: String,
  },
  methods: {
    handleNodeClick(data) {
      console.log(data);
    },
  },
};
</script>

<!-- Add "scoped" attribute to limit CSS to this component only -->
<style  lang="css" scoped>
#leftside {
  border: 2px;
  background-color: aqua;
}
</style>
